What do you need to do to get your speed to read correctly after you install 3:73's on a 99 GT? I've heard 2 different things and the price difference is about 100 dollars so I want to buy the right part!
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Jodi
AKA PonyGirl
Red 68 GT Fastback and Black 99 GT Coupe
"Not your average Mustangs..."
http://hometown.aol.com/redlilpony/Homepage.html